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恩格斯说过,数学是辩证的辅助工具和表现形式.事实上,同学们在数学学习中若能掌握一些辩证规律,对解决问题将会大有裨益.一、常记“客观联系”——“函数定义域”联系是一个普遍的哲学概念,是指一切事物、现象内部诸要素之间的相互依存、相互影响和相互制约的关系.定义域是构成函数的客观要素之一,许多问题都与之相关.如果解题中不注意用联系的观点看问题,往往会造成“一招不慎,满盘皆输”的后果,以下举例说明.
Engels said that mathematics is a dialectical auxiliary tool and form of expression. In fact, if students can master some dialectical laws in mathematics learning, it will be of great help to solve the problem. - “Function Domain ” Contact is a universal concept of philosophy, refers to all things, the interdependence among the various elements of the phenomenon, mutual influence and mutual restraint relationship.Definition domain is one of the objective elements constituting the function, Many problems are related to.If the problem does not pay attention to contact point of view to see the problem, often result in “a move by mistake, lose everything”, the following examples.